/Engine/Source/Runtime/Engine/Classes/VT/RuntimeVirtualTexture.h
(Re)Initialize this object. Call this whenever we modify the producer or transform.
void Initialize ( [IVirtualTexture](API\Runtime\RenderCore\IVirtualTexture) * InProducer, [FVTProducerDescription](API\Runtime\RenderCore\FVTProducerDescription) const & InProducerDesc, FTransform const & InVolumeToWorld, FBox const & InWorldBounds )